Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2018   18:26:30   (   0.01, -75.21) (  -0.09, -75.66)   51.21                80
 06/27/2018   18:10:25   (   0.02, -75.22) (   0.94, -71.13)  466.52                80
 06/29/2018   06:32:13   (  -0.02, -75.24) (   0.24, -76.39)  131.29                80
 06/30/2018   06:10:48   (  -0.02, -75.26) (  -0.80, -71.87)  386.71                80
 07/01/2018   18:32:45   (   0.03, -75.28) (  -0.38, -77.17)  215.45                80
 07/02/2018   18:16:40   (   0.03, -75.29) (   0.65, -72.64)  303.09                80
 07/04/2018   06:38:27   (  -0.03, -75.33) (   0.53, -77.91)  293.38                80
 07/05/2018   06:17:02   (  -0.03, -75.35) (  -0.45, -73.37)  225.43                80
 07/06/2018   18:38:58   (   0.04, -75.38) (  -0.73, -78.67)  375.91                80
 07/07/2018   18:22:54   (   0.04, -75.40) (   0.31, -74.14)  143.20                80